release.yml

name: Release

on:
  push:
    branches: [main]

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up uv
        uses: astral-sh/setup-uv@v4

      - name: Read current version
        id: version
        run: |
          VERSION=$(grep '^__version__' src/agent_trace/__init__.py \
            | sed 's/.*"\(.*\)"/\1/')
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      - name: Compute release tag
        id: tag
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          # Append short SHA if a tag for this exact version already exists,
          # so rapid merges never collide on the same tag.
          if git rev-parse "v${VERSION}" >/dev/null 2>&1; then
            SHORT_SHA=$(git rev-parse --short HEAD)
            TAG="v${VERSION}-${SHORT_SHA}"
          else
            TAG="v${VERSION}"
          fi
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"

      - name: Build changelog
        run: |
          LAST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
          if [ -z "$LAST_TAG" ]; then
            git log --pretty=format:"- %s" HEAD | head -20 > /tmp/changelog.txt
          else
            git log "${LAST_TAG}..HEAD" --pretty=format:"- %s" > /tmp/changelog.txt
          fi

      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG="${{ steps.tag.outputs.tag }}"
          gh release create "$TAG" \
            --title "$TAG" \
            --notes-file /tmp/changelog.txt \
            --target "${{ github.sha }}"